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Thread: How to mod a Rocky

  1. #1
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    How to mod a Rocky

    I kept hearing about the stepless and/or teflon mod.
    I did a search on Coffee snobs and it took me about 2 hours to find/figure out how to do it.

    So here is my guide.

    Dont attempt this unless you already know how to clean out your Rocky by pulling off the top burr.

    The teflon mod will quieten your grinder and give a more consistent grind, as the top burr will have less slack.
    The stepless mod will allow for finer adjustment.

    Once you have the top burr off wind on some teflon tape (PTFE tape, plumbers tape, thread sealing tape). You can find the tape any any hardware store for about $1. It will be in the plumbing section.
    Make sure you wind it on as in the picture below. If you wind it the other way it will come of when you screw the burr back on.



    I found that 2 covering winds was about right (2 on the bottom section 2 on the top). You may need more if your grinder is more sloppy, less if it isnt.

    The teflon will also help with the stepless process as it adds stiffness to the adjustment.

    For the stepless mod get some tubing. I got 6mm water tubing found in the garden section at Bunnings. The pack cost about $4.50.

    .

    Cut a length that is the same as the distance of the stainless steel that sits behind the hopper bucket.
    Cut through the middle down the full length of the tube. If you use a knife be very careful. I found side cutters a better option.



    Put it on the stainless steel section.
    Place the hopper back on. It should be stiff to move.
    Mine wasnt stiff enough so I had to put another bit of tubing on.



    Put you Rocky back together.
    Put some beans in.
    Jam the adjustment switch down with a bit of tubing or whatever will fit.



    Start grinding!
    Pay close attention to the hopper. If there is enough resistance from the tubing the hopper wont move. If it does you may need more/thicker tubing.

    So there it is! A $5 mod for the Rocky.
    Enjoy. ;D

  2. #2
    Senior Member GregWormald's Avatar
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    Re: How to mod a Rocky

    Nice pics, and a clear explanation.

    These mods are well worth doing. When I did mine the fines in the cup diminished to almost zero, and the taste cleaned up considerably.

    If you are fussy about the visuals, and only use the Rocky for one basic grind then the tubing (uncut) can be placed around the top burr carrier above the threads (below the threads in your pic) and tied in place with some nylon cord (or wire or ...) threaded through the centre of the tube.

    Greg

  3. #3
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    Re: How to mod a Rocky

    Quote Originally Posted by GregWormald link=1230021938/0#1 date=1230025161
    Nice pics, and a clear explanation.

    If you are fussy about the visuals, and only use the Rocky for one basic grind then the tubing (uncut) can be placed around the top burr carrier above the threads (below the threads in your pic) and tied in place with some nylon cord (or wire or ...) threaded through the centre of the tube.

    Greg
    The good thing about gregs suggestion is that it pushes evenly all the way around the burr carrier instead of leaving a gap on one side. I modded mine both ways and preffered the later. This friction was enough throught the whole esspresso range and even corser.

    Thanks

    David

  4. #4
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    Re: How to mod a Rocky

    When I was taping mine I tried to get an even wrap rather than have it thicker at the overlap and possibly cocking the burr carrier. I used 2 layers, wrapped the first around 2 thirds then started the outer wrap on the start of the uncovered third went around and finished at the end of that section so there was an even 2 layers all up, sounds a bit pedantic but I found it worked best that way.

  5. #5
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    Re: How to mod a Rocky

    Old thread but thanks for the pictures :)

  6. #6
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    Re: How to mod a Rocky

    I had a laugh I cant screw in the top burr after Teflon taping. I did only 1 layer.

    As for the tubing... I bought the same 6mm x 4m from Bunnings. And found that 1 layer was too slack, the hopper moved around freely. 2 layers were so stiff I could barely seat the hopper down, let alone adjusting it...

    Guess its not my day!

  7. #7
    Senior Membear Bean_Bear's Avatar
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    Re: How to mod a Rocky

    Is your rocky the new 2010 model or the older one? The new version seems to have some different parts to the older model, I dont know if this makes a difference. Havent done anything to my rocky, yet ;).

  8. #8
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    Re: How to mod a Rocky

    Hi BeanBay,

    Mine is a 2010 model, got it a few days ago.

    Ill try the mod again tomorrow, really want to make it stepless! The Teflon taping doesnt bother me that much, there isnt much "slop" from the top burr anyway.

  9. #9
    Senior Membear Bean_Bear's Avatar
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    Re: How to mod a Rocky

    Hi danse, there is a stepless mod on Home Barista (http://www.home-barista.com/grinders/stepless-mod-for-rancilio-rocky-cleaner-approach-t8512.html) that does not use tubing, this may work for you.

    BeanBay

  10. #10
    Senior Member ozscott's Avatar
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    Re: How to mod a Rocky

    Some dont have too much slop in the carrier to start with. *Mine didnt, but the tube actually helps with that because it stops the whole carrier and hopper from being able to move laterally. *The tube mod on mine made a noticeable difference and elevated the Rocky to a higher grinder plane ability wise, and combine that with the rugged engine and build and you have a winner. As an aside I dont think its that reliable to compare the unmodded Rocky with other grinders given how easy it is for a monkey to mod the Rocky.

    Cheers

  11. #11
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    Re: How to mod a Rocky

    BeanBay, Thanks for the link. I found the same thread last night while searching for other mod methods. But Im too lazy to find the right spring and rubber grommet, so I went back to Bunnings and bought a 3mm tubing which is thinner walled.

    I wrap this 3mm first onto the Rocky, then the 6mm over it. And voila! It grips! The hopper doesnt move during grinds and is firm enough to require two hands to adjust it. Only thing Ive noticed so far is the tube slides around a bit when Im adjusting, so I have to hold it down while turning the hopper.

    Now Im a happy monkey!

  12. #12
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    Re: How to mod a Rocky

    Hi All,

    I am new to the forum and I recently purchased a Rocky. I was wondering if people who did this mod are still happy with it. Any problems over time? I have come across 2 other mods on the net, one involving a metal clamp and the other involving adjusting the locking pin. This tubing mod seems like the simplest and wanted to know if it is still working well for folks.

    Also, can anyone tell me what the deal is with the click clack lid and why you want/need that?

    Thanks!

  13. #13
    Senior Membear Bean_Bear's Avatar
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    Re: How to mod a Rocky

    Quote Originally Posted by 50564D4C455640240 link=1230021938/11#11 date=1299176310
    Also, can anyone tell me what the deal is with the click clack lid and why you want/need that?
    I use a Click Clack lid to blow all of the ground coffee out of the grinder mechanism after grinding so that there is no stale coffee in the grinder to get into the next grind. The lid acts like a bellows and allows you to "puff" a good amount of air through the burrs.

    What I do:
    • put 2 slightly mounded scoops of beans into the hopper (the scoop that came with Silvia or any 7g ground coffee scoop will do)
    • Switch grinder on and wait for beans to finish grinding (I usually put the hot water into the cup for my long black whilst waiting, thus starting my simple temperature surfing process)
    • Lift cover off doser and sweep the grinder chute and “puff” the click clack lid a few times until no grinds come out the chute (grinder is still running)
    • Switch grinder off
    • Use the doser leaver to load all of the ground beans into the basket.
    • Sweep doser clean
    • Distribute and tamp as per your own technique/ritual/mania/OCD
    • Attach basket and pull shot

    This is my process fwiw, I am sure lots of people will tell you what I am doing wrong :).

    There are a lot of threads on the click clack mod, I think it is worth while, my Rocky looks like brand new (instead of 3 months old ;)).

  14. #14
    Senior Member simonsk8r's Avatar
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    Old thread, indeed! But after aaaall these years I FINALLY did these mods to my Rocky haha, will see how it grinds tomorrow, but it definitely is much firmer, and now stepless!

    I originally bought an 8mm thick rubber tubing, and by itself it did make the hopper a little bit tighter, but I wanted it a little sturdier. Tried two lots of the tubing but that was waaay to much haha. Sooo good ol improvising hehe... looked around for something to help push it out a bit, turns out blutac all around helped!

    I put it on before the tubing, then the tubing over it (trying to make sure the piping went all over the blutac, so that that doesn't later fall into the grinder *fingers crossed*), then hopper on and jammed the adjustment button with a snippet of tubing! Just for anyone still doing this mod, this is a good alternative for a tighter fit

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